3873.  ----- [WATSON, C.W.] (The Texas Co.). Process for Catalytic Conversion of Carbon Oxides. United States Patent 2,486,895, Nov. 1, 1949; appl. filed Dec. 7, 1945, Serial No. 633,481; 6 claims (Cl. 260-449.6). Chem. Abs., vol. 44, 1950, p. 1675.

In a conversion similar to that described in United States Patent 2,486,894 (abs. 3872), a synthesis catalyst is used in which is incorporated or with which is associated a catalyst for promotion of the water-gas shift reaction. The active agent for catalyzing the shift reaction is an oxide of a metal, such as Cr, and the agent for the synthesis of hydrocarbons from CO and H₂ is a metal of the Fe group in a form available for carbide formation during the conversion reaction. The feed gas is contacted with the fluidized catalyst mixture at 550° -700° F. until 95-99.5% of CO has been converted. The composition of the feed gas is kept at a molar ratio of H₂:CO::2:1, the amount of H₂O not more than that corresponding to saturation at atmospheric temperature. The proportion of CO is such that the molar ratio

is greater than the equilibrium constant K for the water-gas shift reaction at the temperature in the reaction zone. A is a fraction 0.95-0.995 representing the conversion of CO. 1 literature ref. and 8 United States Patents cited.